2027 ICD-10-CM Diagnosis Code C65Malignant neoplasm of renal pelvis

ICD-10-CM Codes›C00–D49›C64-C68›C65

ICD-10-CM C65
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

C65 is a non-billable ICD-10-CM category code for malignant neoplasm of renal pelvis, so it cannot be submitted on claims. Use a more specific code from this category instead, such as C65.1, C65.2, and C65.9.

Code Identity

ICD-10-CM Code
C65
Billable Status
No — Non-Billable Category
Code Describes
Malignant neoplasm of renal pelvis
Short Description
Malignant neoplasm of renal pelvis
Same as the full description in the CMS dataset.
Chapter
C64-C68
Malignant neoplasms of urinary tract

Code Classification

ChapterC00–D49Neoplasms
SectionC64-C68Malignant neoplasms of urinary tract
CategoryC65Malignant neoplasm of renal pelvis
This CodeC65Malignant neoplasm of renal pelvis

Specific Coding for Malignant neoplasm of renal pelvisOverview

Non-specific codes like C65 require more characters. Use one of these billable codes instead:

  • Use C65.1 for Malignant neoplasm of right renal pelvis

  • Use C65.2 for Malignant neoplasm of left renal pelvis

  • Use C65.9 for Malignant neoplasm of unspecified renal pelvis

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to C65: its own notes plus those printed at Chapter 2. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

  • malignant neoplasm of pelviureteric junction
  • malignant neoplasm of renal calyces

Notes

General instructions on how these codes are used.

From Chapter 2 (C00-D49) Neoplasms applies to 1,730 codes
  • Functional activity
  • All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
  • Morphology [Histology]
  • Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
  • Primary malignant neoplasms overlapping site boundaries
  • A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
  • Malignant neoplasm of ectopic tissue
  • Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name C65, its category, or a range that includes it.

Applicable To 2

These notes mention C65.

  • Z80.5 Family history of malignant neoplasm of urinary tract
    Conditions classifiable to C64-C68 names C64-C68, which includes this code
  • Z85.5 Personal history of malignant neoplasm of urinary tract
    Conditions classifiable to C64-C68 names C64-C68, which includes this code

Excludes1 2

These codes carry an Excludes1 note naming C65: they are not reported together with it, unless the two conditions are unrelated.

  • C64 Malignant neoplasm of kidney, except renal pelvis
    malignant neoplasm of renal calyces (C65.-)
  • C64 Malignant neoplasm of kidney, except renal pelvis
    malignant neoplasm of renal pelvis (C65.-)

Clinical InformationClinical

  • Malignant Renal Pelvis Neoplasm

    a primary or metastatic malignant neoplasm that affects the renal pelvis.

Patient EducationClinical

Kidney Cancer

You have two kidneys. They are fist-sized organs on either side of your backbone above your waist. The tubes inside filter and clean your blood, taking out waste products and making urine. Kidney cancer forms in the lining of tiny tubes inside your kidneys.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About C65Overview

What is the ICD-10 code for malignant neoplasm of renal pelvis?

C65 is the ICD-10-CM category for malignant neoplasm of renal pelvis, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is C65 (Malignant neoplasm of renal pelvis) a billable code?

No. This is a category header that groups the codes for malignant neoplasm of renal pelvis, and headers cannot be submitted on claims. Claims for malignant neoplasm of renal pelvis need a more specific code from this category, such as C65.1, C65.2, and C65.9.